David Zimmerman, M.D.
NPI 1346772050 · Internal Medicine Physician · Huntsville, AR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Zimmerman, M.D. is a Internal Medicine Physician provider in Huntsville, AR (NPI 1346772050).
Provider details
- NPI number
- 1346772050
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- E-12665 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
35 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Automated Urinalysis Test81003 | 23 | $2 |
| X-Ray of Chest, 2 Views71046 | 12 | $20 |
Typical Medicare-allowed amounts for these services range $2–$20 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 777 | 187 |
| Gabapentin | 348 | 81 |
| Lisinopril | 338 | 84 |
| Omeprazole | 269 | 73 |
| Amlodipine Besylate | 254 | 70 |
| Metformin Hcl | 238 | 55 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$89 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-31
- Last updated
- 2025-11-07
- Certified
- 2025-11-07
Frequently asked questions
- What is David Zimmerman's NPI number?
- David Zimmerman's National Provider Identifier (NPI) is 1346772050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Zimmerman's specialty?
- David Zimmerman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Zimmerman located?
- David Zimmerman's practice location on file with NPPES is 934 North Gaskill St, Huntsville, AR 72740-1319.
- What is David Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for David Zimmerman is (479) 738-5500.
- Does David Zimmerman accept Medicare?
- David Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Zimmerman's NPI active?
- Yes — David Zimmerman's NPI (1346772050) is active in the NPPES registry as of the last update on 2025-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.